摘要:
Disclosed are a phase locked loop (PLL) of a digital scheme and a method thereof. More specifically, disclosed are a digital phase locked loop having a time-to-digital converter (TDC), a digital loop filter (DLF), and a digitally controlled oscillator (DCO), and that is designed to have a constant jitter characteristic at all times even though an operating condition of a circuit varies according to a process, voltage, temperature (PVT) change, and a method thereof.
摘要:
A method of manufacturing a probe includes: forming a first slant face of the probe through an anisotropic etching process using a first etching mask pattern formed on a silicon substrate; forming a first semiconductor electrode region; forming a second etching mask pattern in an opposite direction of the first etching mask pattern on the silicon substrate; forming a spacer layer on a side wall of the second etching mask pattern; forming a second slant face of the probe; forming a second semiconductor electrode region; forming a silicon oxide layer pattern on the resulting silicon substrate; forming spacer layers on both side walls of the silicon oxide layer pattern; and etching the silicon substrate to a predetermined depth.
摘要:
Provided is a clock operating method and apparatus for supporting a plurality of Ethernet physical layer interfaces. To provide a network synchronization function in a board of simultaneously accommodating the plurality of Ethernet physical layer interfaces, the clock operating method may include: determining a physical layer interface according to a current network synchronization mode; and generating a clock signal of the determined physical layer interface as a reference signal of another physical layer interface.
摘要:
A video phone call method for adjusting resolution quality and a video phone call apparatus supporting the same are provided. The video phone call apparatus includes a Radio Frequency (RF) communication unit for transmit a video phone call connection request message and for receiving a video phone call connection accept message in response to the video phone call connection request message to form a communication channel for connection of video phone call, a camera for collecting an image signal for the video phone call, an audio processor for collecting an audio signal for the video phone call, and a controller for creating a control signal for controlling the image signal and the audio signal, and for adding a collected video frame to the video phone call data to generate integral video phone call data having additional video frame data.